Package: mediawiki1.7
Version: 1.7.1-1
Severity: minor
On my offline small lang=zh-tw test wiki, Special:Mostlinked showed
several "$1"'s.
Special:Whatlinkshere&target=$1
Special:Whatlinkshere&target=User:$1
showed they are from e.g., Mediawiki:Searchsubtitle
However other small Mediawiki wikis didn't have this problem, so it
might be local corruption.